CN1159587C - 测量仪表的前端结构 - Google Patents

测量仪表的前端结构 Download PDF

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Publication number
CN1159587C
CN1159587C CNB98108818XA CN98108818A CN1159587C CN 1159587 C CN1159587 C CN 1159587C CN B98108818X A CNB98108818X A CN B98108818XA CN 98108818 A CN98108818 A CN 98108818A CN 1159587 C CN1159587 C CN 1159587C
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CN
China
Prior art keywords
digital
measurement
extraction
measuring instrument
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB98108818XA
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English (en)
Chinese (zh)
Other versions
CN1202623A (zh
Inventor
S��D��˹ά����
S·D·斯维夫特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fluke Corp
Original Assignee
Fluke Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fluke Corp filed Critical Fluke Corp
Publication of CN1202623A publication Critical patent/CN1202623A/zh
Application granted granted Critical
Publication of CN1159587C publication Critical patent/CN1159587C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
    • G01R19/2509—Details concerning sampling, digitizing or waveform capturing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
    • G01R15/125—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will for digital multimeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/1245—Details of sampling arrangements or methods
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Analogue/Digital Conversion (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
CNB98108818XA 1997-04-09 1998-03-25 测量仪表的前端结构 Expired - Fee Related CN1159587C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US840086 1997-04-09
US840,086 1997-04-09
US08/840,086 US5930745A (en) 1997-04-09 1997-04-09 Front-end architecture for a measurement instrument

Publications (2)

Publication Number Publication Date
CN1202623A CN1202623A (zh) 1998-12-23
CN1159587C true CN1159587C (zh) 2004-07-28

Family

ID=25281413

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB98108818XA Expired - Fee Related CN1159587C (zh) 1997-04-09 1998-03-25 测量仪表的前端结构

Country Status (7)

Country Link
US (1) US5930745A (fr)
EP (1) EP0871036A3 (fr)
JP (1) JP3565705B2 (fr)
KR (1) KR100300107B1 (fr)
CN (1) CN1159587C (fr)
HK (1) HK1017080A1 (fr)
TW (1) TW358157B (fr)

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US6392402B1 (en) * 1998-07-30 2002-05-21 Fluke Corporation High crest factor rms measurement method
DE19912410A1 (de) * 1999-03-19 2000-10-12 Reinhausen Maschf Scheubeck Meßverfahren für eine Hochspannungsdurchführung und geeignete Meßanordnung
TW483819B (en) * 1999-04-15 2002-04-21 Sulzer Chemtech Ag Method and plant for shaping strip-like films
US6615148B2 (en) * 2000-05-17 2003-09-02 Tektronix, Inc. Streaming distributed test and measurement instrument
ES2192961B1 (es) * 2001-11-19 2005-02-16 Consejo Sup. Investig. Cientificas. Dispositivo y procedimiento para la medida de parametros de señales oscilatorias periodicas.
US6859763B2 (en) * 2002-02-15 2005-02-22 General Motors Corporation Technique for computing a measure on an ultrasonic signal having application to identify valve defects in operating engines
US6970118B2 (en) * 2002-08-14 2005-11-29 National Instruments Corporation High-speed high-resolution ADC for precision measurements
US6674379B1 (en) * 2002-09-30 2004-01-06 Koninklijke Philips Electronics N.V. Digital controller with two control paths
JP2005214932A (ja) * 2004-02-02 2005-08-11 Daihen Corp 信号処理装置、この信号処理装置を用いた電圧測定装置及び電流測定装置
TWI233589B (en) * 2004-03-05 2005-06-01 Ind Tech Res Inst Method for text-to-pronunciation conversion capable of increasing the accuracy by re-scoring graphemes likely to be tagged erroneously
US7034517B2 (en) * 2004-03-15 2006-04-25 Fluke Corporation Multimeter with filtered measurement mode
US7162397B2 (en) * 2004-05-07 2007-01-09 Snap-On Incorporated Decoding an alternator output signal
US7072804B2 (en) * 2004-09-28 2006-07-04 Agilent Technologies, Inc. Digital trigger filter for a real time digital oscilloscope
WO2006050325A2 (fr) * 2004-10-29 2006-05-11 Worcester Polytechnic Institute Systeme d'acquisition de donnees de signal electrophysiologique a canaux multiples sur un circuit integre
US20090212966A1 (en) * 2005-06-27 2009-08-27 Novo Nordisk A/S User Interface for Delivery System Providing Dual Setting of Parameters
US7610178B2 (en) * 2006-08-02 2009-10-27 Tektronix, Inc. Noise reduction filter for trigger circuit
US7928721B2 (en) * 2007-07-26 2011-04-19 Fluke Corporation Method and apparatus for amplifying a signal and test device using same
US9347975B2 (en) 2007-08-14 2016-05-24 Fluke Corporation Auto-numbering of measurements in digital multimeter
US8269481B2 (en) * 2007-08-14 2012-09-18 Fluke Corporation Automatic capture and storage of measurements in digital multimeter
TWI361281B (en) * 2008-04-17 2012-04-01 Cyrustek Co A measurement unit including an auto switch low-pass filter
AU2009296712A1 (en) 2008-09-23 2010-04-01 Aegis Industries, Inc. Stun device testing apparatus and methods
JP5268614B2 (ja) * 2008-12-12 2013-08-21 日置電機株式会社 測定装置
EP2412074B1 (fr) * 2009-03-24 2014-11-12 Infinirel Corporation Systèmes et procédés permettant de prédire une défaillance d'un composant électronique
EP2546943B1 (fr) 2010-03-12 2022-07-13 Kabushiki Kaisha Toshiba Système de commande, transformateur, dispositif de contrôle de sécurité et unité de mémoire à flux binaire
US8271235B2 (en) * 2010-03-30 2012-09-18 Qualcomm Incorporated Efficient concurrent sampling at different rates
DE102010046437A1 (de) * 2010-06-23 2011-12-29 Rohde & Schwarz Gmbh & Co. Kg Messvorrichtung und Verfahren zur Dezimation eines Datenstroms
JP2012173158A (ja) * 2011-02-22 2012-09-10 Hioki Ee Corp 測定装置
DE102013221394A1 (de) * 2013-10-22 2015-04-23 Rohde & Schwarz Gmbh & Co. Kg Messgerät und Verfahren zur Messung eines Hochfrequenzsignals mit Deembedding
DE102014205683B4 (de) * 2014-02-28 2015-10-22 Rohde & Schwarz Gmbh & Co. Kg Messgerät und Verfahren zum Anzeigen eines Messsignals
US10132842B2 (en) * 2015-04-01 2018-11-20 Eaton Intelligent Power Limited Virtual ground sensing circuit for high impedance voltage sensors
US11860189B2 (en) 2019-12-12 2024-01-02 Innova Electronics Corporation Rotational electrical probe

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JP3180190B2 (ja) * 1990-01-16 2001-06-25 株式会社日立製作所 ディジタル信号処理方法及びその装置
US5485393A (en) * 1990-08-30 1996-01-16 Metricom, Inc. Method and apparatus for measuring electrical parameters using a differentiating current sensor and a digital integrator
JPH0634678A (ja) * 1992-07-20 1994-02-10 Yokogawa Electric Corp 多相電力計
US5319370A (en) * 1992-08-31 1994-06-07 Crystal Semiconductor, Inc. Analog-to-digital converter with a continuously calibrated voltage reference
JPH06273453A (ja) * 1993-03-23 1994-09-30 Yokogawa Electric Corp 交流信号測定装置
JP3106450B2 (ja) * 1993-05-19 2000-11-06 横河電機株式会社 電力測定装置
US5392042A (en) * 1993-08-05 1995-02-21 Martin Marietta Corporation Sigma-delta analog-to-digital converter with filtration having controlled pole-zero locations, and apparatus therefor
US5619202A (en) * 1994-11-22 1997-04-08 Analog Devices, Inc. Variable sample rate ADC
JPH0798336A (ja) * 1993-09-28 1995-04-11 Yokogawa Electric Corp サンプリング式測定装置
JPH07249988A (ja) * 1994-03-11 1995-09-26 Sony Corp アナログ／デジタルコンバータ
US5532944A (en) * 1994-07-28 1996-07-02 Sorrento Electronics, Inc. Multi-channel analysis system and method using digital signal processing
EP0702235A1 (fr) * 1994-09-15 1996-03-20 Fluke Corporation Procédés graphiques de présentation de tendances et appareil dans un instrument de test
US5475651A (en) * 1994-10-18 1995-12-12 The United States Of America As Represented By The Secretary Of The Navy Method for real-time extraction of ocean bottom properties
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US5621345A (en) * 1995-04-07 1997-04-15 Analog Devices, Inc. In-phase and quadrature sampling circuit
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US5684850A (en) * 1995-08-14 1997-11-04 William K. Warburton Method and apparatus for digitally based high speed x-ray spectrometer
US5592165A (en) * 1995-08-15 1997-01-07 Sigmatel, Inc. Method and apparatus for an oversampled digital to analog convertor
US5698984A (en) * 1996-01-30 1997-12-16 Fluke Corporation Adaptive digital filter for improved measurement accuracy in an electronic instrument

Also Published As

Publication number Publication date
EP0871036A3 (fr) 1999-03-31
KR100300107B1 (ko) 2001-10-27
EP0871036A2 (fr) 1998-10-14
CN1202623A (zh) 1998-12-23
KR19980081216A (ko) 1998-11-25
JPH10319056A (ja) 1998-12-04
US5930745A (en) 1999-07-27
JP3565705B2 (ja) 2004-09-15
HK1017080A1 (en) 1999-11-12
TW358157B (en) 1999-05-11

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